The single-action revolver belonged to actor John Hart. He portrayed the Lone Ranger in the original TV series that ran from 1952 to 1954, about a masked Texas Ranger who battled injustice in the Old West. His sidekick Tonto was one of the most well-known American Indian stereotypes of all time, according to The Associated Press.

Hart used several firearms over his acting career, but this gun is special. It features ivory grips and intricate engraving.

The Powell Tribune reports the museum also has acquired autographed photos of Hart in costume and a cookbook he wrote in the 1990s. Hart died in 2009 at age 91.